Home / 53,598.78-73,972.98-30,939.30

Finding the Fourth Proportional to 53,598.78, 73,972.98 and 30,939.30

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Solution

The fourth proportional to 53,598.78, 73,972.98 and 30,939.30 is: 42,700.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,598.78 : 73,972.98 = 30,939.30 : x
  2. Step 2: Convert to fraction form
    53,598.78/73,972.98 = 30,939.30/x
  3. Step 3: Cross multiply
    53,598.78x = 73,972.98 × 30,939.30
  4. Step 4: Simplify right side
    53,598.78x = 2,288,672,220.11
  5. Step 5: Solve for x
    x = 2,288,672,220.11/53,598.78
  6. Step 6: Final answer
    x = 42,700.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.